56 results about "Seamless handoff" patented technology

The invention discloses a seamless switching method for enhancing stable operation under a micro-grid main network fault, and relates to the technical field of micro-grid management, and the method comprises the steps: obtaining the voltage, current, frequency and phase of each node of a micro-grid, judging the operation state of a main power grid through combined collection, and obtaining the electrical parameter information of a plurality of set position monitoring devices at the same time; 2, aligning the electrical parameters obtained in the step 1 according to a unified time reference, judging the response time difference of each monitoring device to a fault event, and selecting a node where the monitoring device is located as a main control node according to a preset rule; and the main control node sends a control instruction to the auxiliary control node, and the auxiliary control node is switched to an auxiliary control state according to a preset priority after receiving the control instruction. According to the invention, rapid and stable switching of a micro-grid control structure can be realized under the condition that a main power grid has a fault, and the output consistency of each control node is ensured through coordinated adjustment of voltage, frequency and active power, so that the continuity and stability of system operation are maintained.

Disclosed in some examples are methods, systems, and machine-readable medium that enable a seamless handoff of authentication states between an application of a first service (e.g., a web-application) and a component of the first service that invokes a function within the second application (e.g., such as bots or agents of the first service executing within collaborative platforms of a second service). This may be accomplished through the use of a link that encodes a nonce.

The application discloses a ground-non-ground fusion network high-speed terminal seamless switching method and system based on trajectory prediction and resource reservation, and belongs to the technical field of space-ground integrated communication. The core of the method is: through bidirectional motion prediction of the terminal and the NTN node, the switching area is accurately judged; the terminal speed, network delay and other factors are combined to adaptively calculate the dynamic switching window; the AI-enabled link scoring model is used to intelligently select the optimal target link; and the resource is cooperatively pre-reserved and uplink and downlink synchronization is completed before the window. The application has the beneficial effects that: the failure problem of traditional RSRP judgment in the NTN dynamic environment is overcome, the switching success rate and prediction accuracy in the high-speed mobile scene are significantly improved, the service interruption time and signaling overhead are greatly reduced, the continuity and reliability of communication are effectively guaranteed, and the application is suitable for intelligent networked vehicles, unmanned aerial vehicles and other high-dynamic service scenarios in 6G networks.

The application relates to the technical field of wireless communication networks, and discloses a seamless switching method for a hybrid communication network for automatic driving, which comprises the following steps: a network function of a core network receives planning track information of an automatic driving terminal and continuously gathers a plurality of terminal conventional wireless measurement reports in a network; in response to the planning track, instant statistics are performed on the gathered reports to generate dynamic wireless live data representing a current optimal service cell mapping relationship; the planning track is projected to the dynamic wireless live data to calculate a certain switching point and a target cell; wireless resources are reserved in the target cell in advance according to an instruction; when the automatic driving terminal reaches the certain switching point, the automatic driving terminal is triggered to perform instantaneous switching without resource negotiation by using the reserved wireless resources; the application changes the switching management from passive response to active pre-service, generates a dynamic decision basis by using group real-time measurement data, eliminates resource negotiation delay, and guarantees the continuity of automatic driving communication.

The invention relates to the technical field of industrial Internet of Things communication, in particular to an AUTBUS node device and system with a CN-TN main and standby redundancy function. The device comprises a device main framework, a main CN module, a standby CN module, a high-speed internal communication bus and a local redundancy management module, the main CN module and the standby CN module are independent pluggable hardware units, and the main CN module synchronizes core state data to the standby CN module through a high-speed internal communication bus; the local redundancy management module is integrated on the device main framework, is logically independent of an AUTBUS bus protocol stack, and is used for monitoring an internal fault of the main CN module and triggering a local takeover process when monitoring that the main CN module has the internal fault; according to the method and the device, rapid seamless switching is realized on the premise of not triggering network-level re-election, so that the reliability of the AUTBUS node device is improved, and the continuity and the certainty of the time sensitive characteristic of the AUTBUS system are guaranteed.

A controller method comprises receiving a first message from a peripheral device operating in a receive-and-transmit mode for data communication over a wireless link with a central device; sending a second message to one or more other peripheral devices, the second message containing a command to synchronize with the wireless link in a receive-only mode; and, at least in part in response to the identification of a transfer condition, sending a third message to one or more other peripheral devices, the third message containing a command to switch to receive-and-transmit mode for data communication over the wireless link with the central device.

The application discloses a seamless switching method for enhanced stable operation under micro-grid main grid fault, and relates to the technical field of micro-grid management, which comprises the following steps: acquiring the voltage, current, frequency and phase of each node of the micro-grid, judging the operation state of the main grid through joint collection, and simultaneously acquiring the electrical parameter information of a plurality of set position monitoring devices; aligning the electrical parameters acquired in the first step according to a unified time reference benchmark, judging the response time difference of each monitoring device to the fault event, and selecting the node where the monitoring device is located as the main control node according to a preset rule; the main control node sends a control instruction to the auxiliary control node, and the auxiliary control node switches to the auxiliary control state according to a preset priority after receiving the control instruction. The application can realize the fast and stable switching of the micro-grid control structure under the main grid fault, and can ensure the consistency of the output of each control node through the coordinated regulation of the voltage, frequency and active power, so that the continuity and stability of the system operation are maintained.

The invention discloses a working method and device of a wireless network system, electronic equipment and a medium, and relates to the technical field of wireless networks. The method comprises the following steps: sending a broadcast packet at a Mode 1, wherein the broadcast packet comprises an available channel ID; receiving a connection request sent by the master device to be connected after the master device scans the broadcast packet at the Mode 1; the connection request comprises a target channel ID determined by the to-be-connected main equipment in the available channel IDs; according to the connection request, establishing a connection with a corresponding to-be-connected master device, and performing data interaction with the to-be-connected master device in a target channel corresponding to the target channel ID of the Mode 0; and when the network master device is offline, determining a target master device in all the to-be-connected master devices, and enabling the target master device to serve as a new network master device to perform connection and data interaction with other to-be-connected master devices. According to the method, the network master device can be seamlessly switched, data interaction is carried out through a specific time sequence, and the transmission delay can be reduced.

The invention discloses a backbone-level destroy-resistant communication system and method based on heterogeneous biplanes, and belongs to the technical field of communication networks. The system comprises a broadband transmission plane serving as a high-speed primary plane; the narrowband transmission plane is used as a heterogeneous backup plane; and the dual-plane cooperative transmission equipment is deployed at a user access node and a network key node, and integrates the functions of service analysis processing, network state monitoring, protocol conversion, dual-plane access adaptation and intelligent routing decision. According to the invention, physical redundancy is realized by constructing heterogeneous biplanes, and intelligent routing and seamless switching of service awareness are realized by using biplane cooperative transmission equipment. The service is preferentially transmitted through the broadband transmission plane in a normal state; when the broadband transmission plane is damaged, key emergency services such as anti-seismic command and scheduling can be automatically identified, and seamless switching to the narrowband transmission plane is realized, so that the continuity of the key services is guaranteed in an extreme environment, and the overall survivability and the survivability of network communication are greatly improved.

The invention provides an intelligent seamless switching system, method and equipment for network signals, relates to the technical field of networks, and aims to realize real-time change and high-speed seamless switching of routes. The system is characterized in that each signal forwarding node receives a signal from one source node in N source nodes at a moment and forwards the signal to other signal forwarding nodes or a destination node; the signal source synchronous calibration module is used for carrying out nth signal source synchronous calibration on the first node and the second node if the signal source identifiers of the signals received by the first node and the second node are the nth signal source identifiers aiming at the nth signal source identifier generated by the nth source node; the routing module is used for synchronously calibrating the nth signal source and determining a first path and a preselected path; and the switching module is used for switching the transmission path of the signal identified by the nth signal source from the first path to the preselected path in the process of transmitting the nth signal from the nth source node to the destination node based on the first path.

This invention discloses a method for fixed-delay playback and seamless switching of live streams based on absolute time stamps, comprising the following steps: S1: Receive an HTTP-FLV data stream, append an absolute time stamp (absolute_time) to each Tag object, and store the Tag objects in a circular buffer queue; S2: Determine the playback time and locate the Tag object to be sent based on the absolute time stamp (absolute_time); S3: Rewrite the timestamp of the Tag object to be sent, encapsulate it, and send it to the player client; S4: Upon receiving a switching command to switch the current playback stream to the target playback stream, seamlessly switch to the target playback stream for playback. This invention's method for fixed-delay playback and seamless switching of live streams based on absolute time stamps can achieve precise fixed-delay playback of live streams and seamless switching between multiple live sources without full-stream transcoding.

This application provides a method for switching styluses, an electronic device, and a storage medium, relating to the field of touch technology. The method includes: establishing a communication connection between the stylus and a first electronic device; transmitting a first communication protocol corresponding to the first electronic device to the stylus; the first communication protocol instructing the first electronic device to respond to a first input operation by the stylus; detecting a switching operation; the switching operation instructing the switching of the first electronic device interacting with the stylus to a second electronic device; and the stylus, in response to the switching operation, transmitting a second communication protocol corresponding to the second electronic device to the second electronic device; the second communication protocol instructing the second electronic device to respond to a second input operation by the stylus. The stylus switching method provided by this application enables seamless switching between multiple electronic devices using a single stylus, facilitating the use of a single stylus on multiple electronic devices.

The invention discloses a cross-RAT seamless switching method and a cross-RAT seamless switching system for an agent with a body, relates to the technical field of cross-RAT switching, and aims to solve the problem of wireless access mode switching when the agent with the body moves indoors and outdoors. Therefore, the dependence on a static configuration start-stop mode is eliminated; the method specifically comprises the following steps: subscribing position data, map data and motion trend data of a tool body agent, and periodically acquiring network quality information of a WLAN and a cellular network interface at the same time; based on subscription data and network quality information, two contents are dynamically controlled: one is to control opening and closing of a double-transmitting selective receiving function in a direction corresponding to an agent with a body and a communication opposite end on a WLAN and cellular network interface; and 2, when the double-transmitting selective-receiving function is closed, determining an optimal main transmission link in the WLAN and the cellular network interface. According to the invention, resource waste can be reduced while cross-RAT seamless switching is carried out.

The application discloses a new edge intelligent-based switching authentication system and method in intelligent vehicle networking. The authentication system comprises at least one access point, each access point matches a corresponding area, a plurality of edge nodes are configured in the area, and more than two cooperative devices for authenticating user vehicles are included in the plurality of edge nodes; the access point comprises a cooperative identity verification module, which is used for sending user information to the cooperative devices, the cooperative devices measure the characteristics of the user vehicles, and the cooperative devices are cooperatively verified based on distributed learning, a cooperative device selection and update module is used for the access point to select a new cooperative device by predicting the trajectory of the user vehicle and evaluating the reputation of the edge node during the movement of the user vehicle, and the current cooperative device shares its authentication information with the new cooperative device to perform seamless switching authentication between different access points or cooperative devices. The seamless switching authentication system realizes fast switching through reliable edge cooperation.

The invention relates to the technical field of stacker-reclaimer communication, and discloses a method for communication of a wireless AP on a stacker-reclaimer, comprising the following steps: S1, a communication reference configuration and environment modeling stage; s2, a multi-source data real-time monitoring and communication establishment stage; s3, a dynamic channel adaptation and anti-interference optimization stage; s4, an AP seamless switching and connection maintaining stage; s5, an abnormity monitoring and emergency processing stage; s6, a data archiving and model iteration stage; the invention aims to provide a method for communication of a wireless AP (access point) on a stacker-reclaimer, so as to solve the problems that the existing communication mode of the wireless AP on the stacker-reclaimer generally adopts a fixed channel to carry out data transmission, and the dynamic adaptation capability to complex interference in an industrial scene is lacked; signal attenuation and other situations caused by electromagnetic interference and dust cannot be actively avoided, and the problems of signal quality decline, data packet loss or transmission delay and the like easily occur.

In optical wireless communication networks (e.g. LiFi networks), comprised of multiple access points (201, 202), APs, a mechanism is provided for seamless handover between two overlapped neighboring APs, wherein a sectorized endpoint (209) is configured to exploit knowledge of channel turnaround to detect the presence of neighboring AP(s) in an efficient manner and select a relevant segment (PD1, PD2, PD3, PD4) for handover.

The embodiment of the present application relates to the field of wireless communication technology, and discloses a seamless handover method and terminal supporting connection reconfiguration, wherein the connection reconfiguration is realized during seamless roaming by carrying the connection reconfiguration information in the seamless roaming related frames transmitted between the original access point and / or the target access point during seamless roaming; and the seamless handover from the original access point to the target access point is realized by carrying the seamless roaming information in the seamless roaming related frames. Thus, the multi-connection reconfiguration and the seamless handover are effectively coordinated during seamless roaming.

This invention relates to the field of network communication technology, and more particularly to a wireless communication system and method for a tablet computer. The method includes the following steps: when the tablet computer detects an available wireless network, it acquires information such as the signal strength and response latency of each network and calculates the connection priority; subsequently, it performs lightweight link probing in the background under low load to evaluate network availability and continuity; when fluctuations in the current network signal are detected and a better target network is found, the system generates a handover preparation command and caches session state data in the background; finally, after the handover is triggered, it completes session recovery and link synchronization based on the cached data, achieving seamless network handover and stable communication. This invention achieves intelligent and stable connection through multi-network priority evaluation and lightweight link probing, and ensures communication continuity by combining background session caching and a seamless handover mechanism, thereby significantly improving the wireless connection stability and user experience of tablet computers in complex network environments.

The invention provides a communication optimization method in a high-speed moving state and related equipment, and is suitable for the technical field of wireless communication, and the method comprises the steps: obtaining a speed vector of a terminal and the frequency offset of a carrier wave between the terminal and a current base station, performing frequency offset compensation and demodulation parameter adjustment on the radio frequency signal according to the frequency offset to generate signal correction data, and performing motion trail prediction on the terminal according to a base station coverage area set and a velocity vector to determine a target area base station identifier; and according to a communication network carrier aggregation strategy, the target area base station identifier and the velocity vector, performing frequency band configuration to generate a carrier aggregation configuration parameter, according to the velocity vector and the signal correction data, performing a communication switching decision, and according to the target area base station identifier and the carrier aggregation configuration parameter, generating a switching execution instruction. Through real-time frequency offset compensation, target base station determination, carrier aggregation configuration and switching decision, seamless switching and stable high-speed communication in a high-speed mobile scene are realized.

The invention discloses a public and private network converged vehicle-ground communication method and system. The public and private network converged vehicle-ground communication method comprises the following steps: configuring a public network communication unit and a private network communication unit on a vehicle; the ground center obtains historical data of signal conditions of all wireless networks of a driving road section of the vehicle; for each public network in each sub-road section, evaluating a signal quality evaluation result of the public network in the corresponding sub-road section, and / or for the corresponding sub-road section where the private network is arranged, evaluating a signal quality evaluation result of the public network in the corresponding sub-road section; when the public network and the private network exist in the driving road section, generating a network switching strategy for the whole driving road section based on a preset switching decision matrix; and in the running process of the vehicle, according to the real-time position of the vehicle, the current network state and the network switching strategy, carrying out seamless switching on the network of the vehicle. According to the invention, the vehicle-ground communication capable of comprehensively evaluating the network quality is realized.

This system provides a way to actually transform standard 3GPP UEs, including 2G, 4G, and current 5G UEs, into satellite phones without any modifications. [Solution] The LEO satellite communication system communicates with a first sinking satellite having a first field of view including a first plurality of cells, and a second ascending satellite having a second field of view including a second plurality of cells. The first and second satellites have overlapping fields of view, within which overlapping plurality of cells are located. The first processing unit has a first communication port that communicates with the first cell of the first plurality of cells via a first beam and a first antenna, and a second communication port that communicates with the overlapping cell of the overlapping plurality of cells via a second beam and a second antenna. In response to the first cell of the first plurality of cells moving into the overlapping field of view, the first processing unit switches from the first communication port to the second communication port.

The application provides a seamless switching method between LTE network and WiFi network, relates to the technical field of wireless communication, and comprises the following steps: one of network terminals is configured as a master device in two virtual router redundancy protocol groups respectively, and the rest of network terminals are configured as standby devices; in the process of train driving, each network terminal detects the link state of its uplink in real time and sends the link state to other network terminals; when the link state of the master device is abnormal, the master device is configured as a standby device; when the link state of the received master device is abnormal and the priority of the network terminal is the highest among all the network terminals with normal link states, the standby device is configured as a master device; when the master device is a WiFi terminal, the master device forwards service traffic through the WiFi network; and when the master device is an LTE terminal, the master device forwards service traffic through the LTE network. The beneficial effect is that seamless switching between LTE network and WiFi network is realized, and train-ground integrated communication service is ensured without interruption.

An edge application handover client in a user equipment may use application client information, such as type service, provider, location, context, and sendee requirements, to assist seamless edge application handovers of application clients between edge application servers. For example, a handover client may use context information to determine an anticipated route of the user equipment, and thereby determine a next, edge application server for a handoff. The handover client may weigh the needs of multiple application clients m selecting servers for handovers. The handover client may issue requests to servers requesting assistance in handover operations, and may issue subscription requests to servers, and further may determine the success of handovers by monitoring application state synchronization or migration between edge application handover servers.

Sessions in progress are seamlessly moved between devices of a software platform. Proximity-based session handovers are performed between devices of the software platform utilizing ultrasound signals. The ultrasound signals include a frequency signature. The frequency signature is associated with a stationary device. A handover of a session in progress from a mobile device to the stationary device is performed based on the detection of the ultrasound signal.

Disclosed in some examples are methods, systems, and machine-readable medium that enable a seamless handoff of authentication states between an application of a first service (e.g., a web-application) and a component of the first service that invokes a function within the second application (e.g., such as bots or agents of the first service executing within collaborative platforms of a second service). This may be accomplished through the use of a link that encodes a nonce.

The present application belongs to the technical field of communication redundancy design during energy switching, and in particular to a mobile energy system communication reliability redundancy design method and a mobile energy system. The mobile energy system communication reliability redundancy design method improves the anti-interference ability and fault tolerance of communication from two aspects of hardware and software. In view of the problem of electromagnetic interference on site, multi-level hardware anti-interference measures are adopted to solve the problem of communication reliability. The built-in link automatic switching, degraded operation and local cache mechanism of the energy system enable the energy system to automatically recover or maintain basic operation when facing communication failure, avoiding system downtime caused by communication problems. The redundancy design is deeply integrated with business logic such as automatic switching, seamless switching and multi-machine parallel operation, and provides differentiated reliability protection for different scenarios. Through intelligent diagnosis, the quality of the communication link is monitored in real time, which facilitates the maintenance personnel to troubleshoot hidden dangers in advance and quickly locate problems.

This invention discloses a trunking communication system based on a 4G wireless network, belonging to the field of trunking communication technology. It is used to start the device and select an architecture for connection, monitor the group call signal corresponding to the group information in real time, and send the group call signal to the terminal startup module. After receiving the group call signal, the terminal startup module sends the group call signal to all online devices in the group, compresses the voice data, and transmits the voice data based on the PoC protocol. Online devices monitor the multicast address in real time, obtain the call end signal, and send the call end signal to the online devices to stop voice data transmission. This invention achieves seamless switching between private and public networks through multi-network convergence technology, improving the reliability and stability of communication. By adopting the PoC protocol and utilizing 4G / 5G networks for trunking communication, communication efficiency is improved. At the same time, the optimized network transmission protocol reduces communication costs, demonstrating significant advantages in emergency communication and public safety fields.

The application relates to a seamless switching and context synchronization system and method in a customer service man-machine cooperation process, and deep learning is provided in the application, and more particularly relates to the field of electric digital data processing. The system comprises: a big data acquisition device for acquiring big data track communication content of each past time segment of a set e-commerce application before a current time; and a data analysis device for intelligently analyzing the number of intelligent robots and the number of artificial customer services required for seamless switching in the current time segment based on the big data track communication content by using an intelligent customer service data analysis model. By the application, in the face of the technical problem that seamless switching in the customer service man-machine cooperation process is difficult to achieve in different time segments, a deep learning model can be used to intelligently analyze the number of various customer services required for seamless switching in each time segment according to various types of basic information acquired by big data, so that the above technical problem is solved.

The application discloses a dual-mode redundant communication system and method based on a five-pin interface, relates to the technical field of communication, and comprises a host and a slave, and the method comprises access detection, low-speed handshake negotiation, rate switching, dual-mode redundant transmission and link self-healing; the application can complete power supply, hot plug detection, low-speed protocol negotiation, high-speed full-duplex data transmission and wireless redundant backup only by using VCC, GND, DET and two dynamically multiplexed signal lines, and can realize runtime protocol dynamic switching through a GPIO matrix, and reserves flexible space for expanding SPI, I2C and other protocols; in addition, a UART wired and ESP-NOW wireless dual-mode hot backup architecture is adopted, the slave simultaneously sends same data through two links, the host preferentially reads the wired link, can be seamlessly switched to the wireless link within a preset timeout threshold, automatically restores the wired priority after reinsertion, and realizes millisecond-level link self-healing.